Had a very strange event yesterday. Was flying my P4 at approximately 60 feet altitude, and began a slow ascent. All of a sudden I noticed it was screaming upward (at a rate faster than I had ever seen), at which point I lowered the throttle down to arrest the climb. Then it began dropping like a stone, as though the motors were completely off. I had no control. As a last ditch try before it cratered the nearby road, I hit the RTH, and it responded immediately and came back to base. I was in 'P' mode the whole flight.
Any ideas what caused this?
Any ideas what caused this?